diff options
author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-10-18 07:20:43 +0200 |
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committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-10-21 07:47:55 +0200 |
commit | 26cc9db744be8d5057a28c81cebb670197ac5692 (patch) | |
tree | 8f55c4dd9fd7d3f086f947b90325ff73f0393359 /libavcodec/on2avc.c | |
parent | fba8890628ece8a4c7ca479ea86d4ec309557384 (diff) |
avcodec/on2avc: Unify initializing quad and pair VLCs
Up until now, quad VLCs are initialized with codes of type uint32_t,
pair VLCs with codes of type uint16_t. There were two separate loops in
the decoder's init function for each type of VLC. This commit unifies
this: The type of the codes are now passed in as void * and the actual
size of the codes is obtained from a table. This approach also allows to
use the smallest type for each VLC code table: some quad tables actually
fitted in uint16_t. This allows to remove about 7KB from the binary.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Diffstat (limited to 'libavcodec/on2avc.c')
-rw-r--r-- | libavcodec/on2avc.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/libavcodec/on2avc.c b/libavcodec/on2avc.c index 00e5bf5397..e54c23cb1c 100644 --- a/libavcodec/on2avc.c +++ b/libavcodec/on2avc.c @@ -961,21 +961,12 @@ static av_cold int on2avc_decode_init(AVCodecContext *avctx) ff_on2avc_scale_diff_codes, 4, 4, 0)) { goto vlc_fail; } - for (i = 1; i < 9; i++) { - int idx = i - 1; - if (ff_init_vlc_sparse(&c->cb_vlc[i], 9, ff_on2avc_quad_cb_elems[idx], - ff_on2avc_quad_cb_bits[idx], 1, 1, - ff_on2avc_quad_cb_codes[idx], 4, 4, - ff_on2avc_quad_cb_syms[idx], 2, 2, 0)) { - goto vlc_fail; - } - } - for (i = 9; i < 16; i++) { - int idx = i - 9; - if (ff_init_vlc_sparse(&c->cb_vlc[i], 9, ff_on2avc_pair_cb_elems[idx], - ff_on2avc_pair_cb_bits[idx], 1, 1, - ff_on2avc_pair_cb_codes[idx], 2, 2, - ff_on2avc_pair_cb_syms[idx], 2, 2, 0)) { + for (i = 1; i < 16; i++) { + int idx = i - 1, codes_size = ff_on2avc_cb_codes_sizes[idx]; + if (ff_init_vlc_sparse(&c->cb_vlc[i], 9, ff_on2avc_cb_elems[idx], + ff_on2avc_cb_bits[idx], 1, 1, + ff_on2avc_cb_codes[idx], codes_size, codes_size, + ff_on2avc_cb_syms[idx], 2, 2, 0)) { goto vlc_fail; } } |